An environmentalist frees dolphins in Japan and a large ice shelf breaks free of Antarctica.

Feb. 28, 1980: Hawaiian environmentalist Dexter Cate paddles into a cove at Iki Island, Japan and frees between 200 and 300 dolphins netted for slaughter as pet food and fertilizer. He is later arrested. "Those fishermen were there merely to do a job," Cate tells People Magazine. "They didn't consider it murder, but I did. I knew I had to do something."